UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

~~July 28~~September 8, 2025

AMKOR TECHNOLOGY, INC.

(Exact name of registrant as specified in its charter)

Delaware

000-29472

23-1722724

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

2045 EAST INNOVATION CIRCLE

TEMPE, AZ 85284

(Address of principal executive offices, including zip code)

(480) 821-5000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of Each Class	Trading Symbol	Name of Each Exchange on Which Registered
Common Stock, $0.001 par value	AMKR	The NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o☐

Item 2 8.0201. ~~Results~~Other ~~of Operations and Financial Condition~~Events.

On ~~July 28~~September 8, 2025, Amkor Technology, Inc. ~~announced~~(the in“Company”) issued a press release ~~its~~announcing ~~financial performance for~~ the ~~three~~pricing ~~and~~of ~~six~~its ~~months~~offering ~~ended~~of ~~June 30~~$500,000,000 ~~2025. The~~aggregate ~~information~~principal inamount ~~this~~of ~~Current~~its ~~Report~~5.875% onSenior ~~Form~~Notes ~~8-K,~~due ~~including~~2033 (the ~~exhibit~~“2033 ~~attached~~Notes”). ~~hereto,~~The isCompany ~~being~~also ~~furnished~~announced ~~and~~its ~~shall~~intention ~~not~~to beuse ~~deemed~~the ~~“filed”~~proceeds ~~for~~of ~~purposes~~the ofoffering ~~Section 18~~to ofredeem in full the ~~Securities~~$400,000,000 ~~Exchange~~aggregate ~~Act~~principal amount outstanding of ~~1934,~~its as6.625% ~~amended~~senior notes due 2027 (the “~~Exchange~~2027 ~~Act~~Notes”), orto ~~otherwise~~pay ~~subject~~related tofees ~~liability~~and ~~under~~expenses, ~~that~~and ~~section,~~for ~~nor~~general ~~shall~~corporate itpurposes. beThe ~~deemed~~consummation ~~incorporated~~of bythe ~~reference~~offering inof ~~any~~the ~~filing~~2033 ~~under~~Notes will not be conditioned on the ~~Securities~~redemption ~~Act~~of the 2027 Notes. A copy of ~~1933,~~this press release is attached as ~~amended,~~Exhibit or99.1 ~~the~~to ~~Exchange~~this ~~Act,~~Current ~~regardless~~Report ofon ~~any~~Form ~~general~~8-K ~~incorporation~~and ~~language~~is inincorporated ~~such~~herein ~~filing~~by reference.

This Current Report on Form 8-K does not constitute a notice of redemption of the 2027 Notes.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit						Description
99.1						Press ~~Release~~release, dated ~~July~~September 288, 2025, ~~which~~announcing ispricing ~~furnished~~of ~~(not~~Amkor ~~filed)~~Technology, ~~herewith~~Inc.'s 5.875% Senior Notes due 2033 and intention to redeem senior notes due 2027.
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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

AMKOR TECHNOLOGY, INC. By: /s/ ~~Megan~~Mark ~~Faust~~N. ~~Megan~~Rogers ~~Faust~~Mark N. Rogers Executive Vice President, ~~Chief~~General ~~Financial~~Counsel, ~~Officer~~ and ~~Treasurer~~Corporate Secretary

Date: ~~July 28~~ September 8, 2025

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